CN111051230A - Filament winding device and yarn hanging method in filament winding device - Google Patents

Filament winding device and yarn hanging method in filament winding device Download PDF

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Publication number
CN111051230A
CN111051230A CN201880051407.3A CN201880051407A CN111051230A CN 111051230 A CN111051230 A CN 111051230A CN 201880051407 A CN201880051407 A CN 201880051407A CN 111051230 A CN111051230 A CN 111051230A
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China
Prior art keywords
fiber bundle
standard yarn
yarn
guide
standard
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Granted
Application number
CN201880051407.3A
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Chinese (zh)
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CN111051230B (en
Inventor
谷川元洋
中村大五郎
五由出将嗣
松浦哲也
下本英生
西田达彦
鱼住忠司
池崎秀
和田浩孝
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Murata Machinery Ltd
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Murata Machinery Ltd
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Publication of CN111051230A publication Critical patent/CN111051230A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/26—Co-operating surfaces mounted for relative movement and arranged to deflect material from straight path
    • B65H59/32—Co-operating surfaces mounted for relative movement and arranged to deflect material from straight path the surfaces being urged away from each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H81/00—Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for
    • B65H81/06—Covering or wrapping elongated cores
    • B65H81/08—Covering or wrapping elongated cores by feeding material obliquely to the axis of the core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B29C53/602—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels for tubular articles having closed or nearly closed ends, e.g. vessels, tanks, containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
    • B29C53/8016—Storing, feeding or applying winding materials, e.g. reels, thread guides, tensioners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0004—Component parts, details or accessories; Auxiliary operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0073—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor of non-flat surfaces, e.g. curved, profiled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/24—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • B29C70/323—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core on the inner surface of a rotating mould
    • B29C70/326—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core on the inner surface of a rotating mould by rotating the mould around its axis of symmetry
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/12—Tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/14—Pulleys, rollers, or rotary bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B29C53/62—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis
    • B29C53/64—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels rotatable about the winding axis and moving axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B29C53/68—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels with rotatable winding feed member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7154—Barrels, drums, tuns, vats
    • B29L2031/7156—Pressure vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)

Abstract

The fiber bundle is reliably guided to the spiral winding head while saving labor for the yarn hanging operation. A filament winding device (1) is provided with: a support portion for rotatably supporting the sleeve (L); a bobbin support part (12) for supporting a bobbin (B) on which a fiber bundle (F) is wound; a spiral winding unit (40) that spirally winds the fiber bundle (F) running on a fiber bundle guide path (50) formed from the bobbin support portion (12) to the liner (L) around the liner (L); and a standard yarn guide mechanism (62) which forms a standard yarn guide path (60) for guiding a standard yarn (Y) which is different from the fiber bundle (F) and is connected with the front end part of the fiber bundle (F) from the bobbin (B) to the sleeve (L). The standard yarn guide mechanism (62) has a nozzle (63) for blowing the standard yarn (Y) and a guide pipe (64) for guiding the blown standard yarn (Y), and the nozzle (63) and the guide pipe (64) are arranged along the fiber bundle guide path (50) and configured to be capable of taking out the standard yarn (Y) from the standard yarn guide path (60) to the fiber bundle guide path (50).

Description

Filament winding device and yarn hanging method in filament winding device
Technical Field
The present invention relates to a filament winding device for winding a fiber bundle around a liner and a yarn winding method in the filament winding device.
Background
Patent document 1 discloses a filament winding device for winding a fiber bundle around a mandrel (sleeve). The filament winding device is provided with: a spiral winding head for performing spiral winding with respect to the sleeve; and a supply section configured with a plurality of creels (bobbins) on which a plurality of fiber bundles supplied to the helical winding head are wound, respectively. In the case of the spiral winding, as preparation for guiding the plurality of fiber bundles from the supply portion to the liner, a yarn hanging operation of hanging the fiber bundles around a guide or the like arranged on a running path of the fiber bundles is required. The yarn hanging operation is performed by manual operation of a worker.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2008-195000
Disclosure of Invention
Problems to be solved by the invention
Since the operation of threading a plurality of fiber bundles takes a lot of labor, the inventors of the present invention studied the following method in order to reduce the labor of the operation of threading. For example, the following methods are considered; the nozzle is disposed on a path of the fiber bundle from the bobbin to the liner, and the fiber bundle is guided from the bobbin to the liner without human hands by blowing the fiber bundle off by supplying compressed air to the nozzle. However, the inventors of the present invention found that: when the fiber bundle is blown off by the nozzle, the fiber bundle is scattered by the air flow, and it is difficult to blow off the fiber bundle from the bobbin to the liner.
The invention aims to reliably guide a fiber bundle to a spiral winding head while saving labor for yarn hanging operation.
Means for solving the problems
A filament winding device according to a first aspect of the present invention includes: a support portion rotatably supporting the sleeve; a yarn feeding section for supporting a bobbin around which a fiber bundle to be wound around the liner is wound; a spiral winding head that spirally winds the fiber bundle running on a fiber bundle guide path formed from the yarn feeding portion to the sleeve, around the sleeve; and a standard yarn guide mechanism that forms a standard yarn guide path for guiding a standard yarn, which is different from the fiber bundle and is continuous with a tip end portion of the fiber bundle, from the bobbin to the sleeve, the standard yarn guide mechanism including: a nozzle for blowing the standard yarn by using compressed gas; and a guide pipe that guides the standard yarn blown off by the nozzle, wherein the nozzle and the guide pipe are arranged along the fiber bundle guide path, and are configured to be able to take out the standard yarn from the standard yarn guide path to the fiber bundle guide path.
In the present invention, instead of the fiber bundle, the standard yarn connected to the fiber bundle is guided to the sleeve along the standard yarn guide path by the nozzle and the guide pipe. After the standard yarn reaches the sleeve, the standard yarn can be taken out of the standard yarn guide path and moved to the fiber bundle guide path. Further, by pulling the standard yarn toward the sleeve side, the fiber bundle connected to the standard yarn can be pulled out along the fiber bundle guide path and guided to the sleeve. Therefore, the fiber bundle can be reliably guided to the spiral winding head while saving labor for the yarn hanging operation.
A filament winding device according to a second aspect of the invention is the filament winding device according to the first aspect of the invention, further comprising a drawing device that takes the standard yarn from the standard yarn guide path to the fiber bundle guide path by winding the standard yarn guided to the liner, and draws the fiber bundle connected to the standard yarn to the liner along the fiber bundle guide path.
In the present invention, since the fiber bundle connected to the standard yarn is pulled out to the liner by the pulling-out device, the labor for the yarn hooking operation can be further saved as compared with the case where the fiber bundle connected to the standard yarn is pulled out by the manual operation.
A third aspect of the invention provides the filament winding device according to the second aspect of the invention, wherein the support portion includes a driving device for rotationally driving the sleeve, and the drawing device is the driving device.
In the present invention, the standard yarn is fixed to the sleeve supported by the support portion, and the sleeve is rotationally driven by the driving device, whereby the standard yarn can be wound around an end portion of the sleeve or the like. Thereby, the fiber bundle connected to the standard yarn can be pulled out to the sleeve by the rotation of the sleeve. Therefore, it is not necessary to provide a separate drawing device, and an increase in cost can be suppressed.
A filament winding device according to a fourth aspect of the invention is the filament winding device according to any one of the first to third aspects of the invention, wherein the nozzle is formed with a slit capable of taking out the standard yarn from the nozzle.
In the present invention, the standard yarn guided to the sleeve can be taken out from the nozzle by a simple configuration.
A filament winding device according to a fifth aspect of the invention is the filament winding device according to any one of the first to fourth aspects of the invention, wherein the guide pipe has a slit formed over an entire length in an extending direction of the guide pipe.
In the present invention, the standard yarn guided to the sleeve can be taken out from the guide tube by a simple configuration.
A filament winding device according to a sixth aspect of the invention is the filament winding device according to any one of the first to fifth aspects of the invention, wherein the reference yarn guide mechanism is capable of switching between a restricted state in which the reference yarn is prevented from being pulled out from the reference yarn guide path and an allowed state in which the reference yarn is allowed to be taken out from the reference yarn guide path.
In the present invention, the standard yarn guide mechanism is maintained in the restricted state during the period from the time when the standard yarn is blown off from the nozzle to the time when the standard yarn reaches the sleeve, and the standard yarn can be prevented from coming off from the standard yarn guide path. After the standard yarn reaches the sleeve, the standard yarn guide mechanism is switched to the allowing state, whereby the standard yarn can be taken out from the standard yarn guide path.
A filament winding device according to a seventh aspect of the invention is the filament winding device according to the sixth aspect of the invention, wherein the nozzle is formed with a slit capable of taking out the standard yarn from the nozzle, and the standard yarn guide mechanism includes a nozzle cover capable of closing and opening the slit of the nozzle.
In the present invention, the standard yarn can be prevented from coming out of the nozzle by closing the slit with the nozzle cover, and the standard yarn can be taken out of the nozzle by opening the slit. In this way, the state of the nozzle can be switched between a state in which the standard yarn is prevented from coming out of the nozzle and a state in which the standard yarn can be taken out by a simple structure.
A filament winding device according to an eighth aspect of the invention is the filament winding device according to the sixth or seventh aspect of the invention, wherein the guide tube has a slit formed over an entire length in an extending direction of the guide tube, and the standard yarn guide mechanism includes a guide cover capable of closing and opening the slit of the guide tube.
In the present invention, the standard yarn can be prevented from coming off the guide tube by closing the slit with the guide cover, and the standard yarn can be taken out from the guide tube by opening the slit. In this way, the state of the guide pipe can be switched between a state in which the standard yarn is prevented from coming off the guide pipe and a state in which the standard yarn can be taken out by a simple configuration.
A filament winding device according to a ninth aspect of the invention is the filament winding device according to any one of the first to eighth aspects of the invention, further comprising a reference yarn buffer disposed at an upstream end of the reference yarn guide path in a reference yarn traveling direction and configured to store the reference yarn before being blown off by the nozzle.
In the case where the standard yarn hangs down without being stored in a predetermined place, the standard yarn may be caught or wound around peripheral members when the standard yarn is blown off from the nozzle. In the invention, the standard thread is drawn off from the standard thread buffer by a nozzle and blown off. Therefore, by appropriately forming the path of the standard yarn from the standard yarn buffer to the nozzle, it is possible to suppress the standard yarn from catching or winding on peripheral members or the like.
A filament winding device according to a tenth aspect of the invention is the filament winding device according to any one of the first to eighth aspects of the invention, further comprising a bobbin driving device for rotating the bobbin, the bobbin being wound with the standard yarn on a surface of the bobbin.
As an alternative of the ninth invention, it is also conceivable to wind and store the standard yarn on the surface of the bobbin on which the fiber bundle is wound, but the following problems arise. That is, since the bobbin around which the fiber bundle is wound is heavy, even if the standard yarn is blown off by the compressed air supplied to the nozzle, the bobbin is hard to rotate and the standard yarn is hard to be unwound. In the present invention, by rotationally driving the bobbin so that the standard yarn is unwound from the bobbin, the standard yarn can be blown off by the nozzle while being unwound from the bobbin.
A filament winding device according to an eleventh aspect of the invention is the filament winding device according to any one of the first to tenth aspects of the invention, wherein a guide roller for guiding the fiber bundle is provided in the fiber bundle guide path, and the standard yarn guide mechanism includes the guide pipe including a curved portion disposed along a peripheral surface of the guide roller, and the standard yarn can be taken out from a position of the guide pipe facing the peripheral surface.
In the present invention, the curved portion of the guide pipe is disposed along the circumferential surface of the guide roller, and the standard yarn can be taken out from a position facing the guide roller. Therefore, the standard yarn can be smoothly moved from the guide pipe on the standard yarn guide path to the guide roller on the fiber bundle guide path. Therefore, the standard yarn can be prevented from being separated from the guide roller when the standard yarn is moved.
A filament winding device according to a twelfth aspect of the invention is the filament winding device according to any of the first to eleventh aspects of the invention, wherein the fiber bundle guide path includes: a fixed roller whose position is fixed; and a movable roller disposed upstream or downstream of the fixed roller in a fiber bundle traveling direction and movable relative to the fixed roller, the standard yarn guide mechanism including: a fixed guide pipe whose position is fixed with respect to the fixed roller; and a movable guide tube movable integrally with the movable roller, the movable roller being movable between a normal position at which the fiber bundle is guided and a standard yarn guide position at which an end of the movable guide on the fixed guide side in the fiber bundle traveling direction is opposed to an end of the fixed guide on the movable guide side in the fiber bundle traveling direction, the standard yarn being movable from the standard yarn guide path to the fiber bundle guide path by the movable roller moving from the standard yarn guide position to the normal position.
In the present invention, the movable roller is moved together with the movable guide tube to the standard yarn guide position, whereby the end of the fixed guide and the end of the movable guide tube face each other to form the standard yarn guide path. Therefore, even when the fiber bundle guide path is complicated, the standard yarn guide path can be simplified by devising the position of the movable guide tube at which the movable guide tube is arranged. After the standard yarn is guided to the liner, the movable roller is returned to the normal position, thereby forming a fiber bundle guide path. Thus, the standard yarn can be efficiently moved toward the fiber bundle guide path.
A filament winding device according to a thirteenth aspect of the invention is the filament winding device according to any of the first to twelfth aspects of the invention, wherein the length of the reference yarn is equal to or greater than the length of the reference yarn guide path.
When the standard yarn is shorter than the standard yarn guide path, a part of the fiber bundle is also positioned on the standard yarn guide path when the tip end portion of the standard yarn reaches the sleeve, and therefore the fiber bundle may be damaged by contact with the nozzle, the guide pipe, or the like. Further, in order to guide the fiber bundle to the liner by the standard yarn guide mechanism, the fiber bundle needs to be unwound from the bobbin, but since the bobbin around which the fiber bundle is wound is heavy, the bobbin is difficult to be driven and rotated even when the standard yarn is blown off by the compressed air supplied to the nozzle. In the present invention, the standard yarn can be guided to the sleeve over the entire length of the standard yarn guide path. Therefore, the fiber bundle can be guided to the sleeve along the fiber bundle guide path without contacting the nozzle or the guide pipe. Therefore, damage to the fiber bundle and the like due to contact between the nozzle or the guide pipe and the fiber bundle can be prevented. Further, since the standard yarn does not need to be blown off together with the fiber bundle, it is not necessary to rotate the heavy bobbin when the standard yarn Y is blown off. Therefore, the standard yarn can easily reach the sleeve by the nozzle.
A yarn hanging method in a filament winding device according to a fourteenth aspect of the present invention is a yarn hanging method in a filament winding device including: a helical winding head for helically winding the fiber bundle around the sleeve; and a support portion that supports a bobbin around which the fiber bundle to be supplied to the helical winding head is wound, and winds the fiber bundle around a fiber bundle guide path that guides the fiber bundle from the bobbin to the liner before the fiber bundle is wound around the liner by the helical winding head, the yarn winding method including: a standard yarn guiding step of guiding a standard yarn, which is different from the fiber bundle and is continuous with a tip end portion of the fiber bundle, to the sleeve by a standard yarn guiding mechanism having a nozzle for blowing the standard yarn by a compressed gas and a guide pipe for guiding the standard yarn blown by the nozzle; a standard yarn moving step of taking out the standard yarn guided to the sleeve along a standard yarn guide path formed by the standard yarn guide mechanism from the nozzle and the guide pipe, and moving the standard yarn from the standard yarn guide path to the fiber bundle guide path; and a fiber bundle drawing step of drawing the fiber bundle to the sleeve by drawing the standard yarn guided to the sleeve.
In the present invention, as in the first invention, the fiber bundle can be reliably guided to the spiral winding unit while saving labor for the yarn winding operation.
In the yarn hooking method in the filament winding device according to the fifteenth aspect of the invention, in the fourteenth aspect of the invention, when the standard yarn is pulled toward the sleeve side in the fiber bundle drawing step, the standard yarn moving step is completed before the fiber bundle connected to the standard yarn is pulled on the standard yarn guide path and enters the nozzle.
When the standard yarn is pulled in the fiber bundle drawing step, if the fiber bundle connected to the standard yarn enters the nozzle or the guide pipe, the fiber bundle may be damaged when the fiber bundle enters the nozzle or the guide pipe or when the fiber bundle is taken out from the nozzle or the guide pipe. Therefore, the fiber bundle is preferably pulled and guided to the liner as much as possible on the fiber bundle guide path along which the fiber bundle originally travels. In the present invention, the standard yarn is moved to the fiber bundle guide path before the fiber bundle enters the nozzle, whereby the front end portion of the fiber bundle is also moved to the fiber bundle guide path together with the standard yarn. Therefore, the fiber bundle can be prevented from entering the nozzle or the guide pipe, and the fiber bundle can be prevented from being damaged by contact with the nozzle or the guide pipe.
In the yarn hooking method in the filament winding device according to the sixteenth aspect of the invention, in the fourteenth or fifteenth aspect of the invention, at least a part of the fiber bundle drawing step is performed in parallel with the reference yarn moving step by winding the reference yarn guided to the liner.
In the present invention, by winding the standard yarn guided to the liner, the standard yarn is moved from the standard yarn guide path to the fiber bundle guide path by applying tension to the standard yarn, and the fiber bundle connected to the standard yarn can be pulled out toward the liner side. In this way, by performing at least a part of the fiber bundle drawing step in parallel with the standard yarn moving step, the working time can be shortened.
In the yarn hooking method in the filament winding device according to the seventeenth aspect of the invention, in the fourteenth or fifteenth aspect of the invention, the standard yarn moving step is completed before the fiber bundle drawing step is started.
In the present invention, the tow drawing step is started after the standard yarn is moved from the standard yarn guide path to the tow guide path, and therefore the fiber tow can be more reliably prevented from coming into contact with the nozzle, the guide pipe, or the like.
Drawings
Fig. 1 is a perspective view of a filament winding device according to the present embodiment.
Fig. 2 is a perspective view of the winding device.
Fig. 3 is a block diagram showing an electrical configuration of the filament winding device.
Fig. 4 is a schematic view of a fiber bundle guide path and a standard yarn guide path.
Fig. 5 is a schematic diagram showing the structure of the periphery of the bobbin supporting portion.
Fig. 6 is an explanatory view of the nozzle.
Fig. 7 is an explanatory view showing the configuration of the fiber bundle guide part, the guide pipe, and the periphery thereof.
Fig. 8 is an explanatory view of the tension applying portion.
Fig. 9 is an explanatory diagram of the slack eliminating unit.
Fig. 10 is a flowchart showing the steps of the yarn hanging operation.
Fig. 11 is an explanatory view showing the tension applying portion and the slack eliminating portion when the movable roller is at the standard yarn guiding position.
Fig. 12 is an explanatory view showing a state where a standard yarn is blown off from a nozzle.
Fig. 13 is an explanatory view showing a state where a standard yarn reaches the sleeve.
Fig. 14 is an explanatory diagram showing a state in which the cover of the nozzle and the cover of the guide pipe are opened.
Fig. 15 is an explanatory diagram showing the tension applying portion and the slack eliminating portion when the movable roller returns to the normal position.
Fig. 16 is an explanatory view showing a state where a standard yarn is wound around a sleeve.
Fig. 17 is an explanatory view showing the movement of the standard yarn from the guide tube toward the roller.
Fig. 18 is an explanatory view showing the periphery of the bobbin supporting part after the standard yarn has moved to the fiber bundle guiding path.
Fig. 19 is a schematic diagram illustrating a configuration of the periphery of the bobbin supporting portion according to the modification.
Fig. 20 is a schematic view of a fiber bundle guide path and a standard yarn guide path according to still another modification.
Detailed Description
Next, an embodiment of the present invention will be described with reference to fig. 1 to 18. For convenience of explanation, the directions shown in fig. 1 are front, rear, left, and right directions. The direction perpendicular to the front, rear, left, and right directions is defined as the vertical direction in which gravity acts.
(brief construction of filament winder)
First, a schematic configuration of the filament winding device 1 will be described with reference to fig. 1. The filament winding device 1 includes a winding device 2, a creel 3, and a control panel 4.
The winding device 2 winds the fiber bundle F around the liner L. The fiber bundle F is, for example, a fiber bundle in which a fiber material such as carbon fiber is impregnated with a thermosetting synthetic resin material. The sleeve L, which is an object to be wound with the fiber bundle F, is a member for a pressure tank, for example, and is formed of high-strength aluminum or the like, and has a cylindrical portion, dome portions formed on both sides of the cylindrical portion, and a small-diameter nose portion. The details of the winding device 2 will be described later.
The creel 3 is a frame for supplying the fiber bundle F to a helical winding unit 40 described later. The creel 3 includes a support frame 11 and a plurality of (for example, 180) bobbin support portions 12 (yarn feeding portions of the present invention) supported by the support frame 11. The support frames 11 are arranged substantially in bilateral symmetry. An arrangement space 13 in which a part of the winding device 2 is arranged is formed in a central portion of the support frame 11 in the left-right direction (details of the arrangement space 13 are not shown). The plurality of bobbin support portions 12 rotatably support bobbins B (only 1 bobbin is illustrated in fig. 1) on which the fiber bundle F to be supplied to the spiral winding unit 40 is wound.
The control panel 4 includes a control device 5, a display unit 6, and an operation unit 7. The controller 5 controls the operations of the respective parts of the winding device 2. The display unit 6 displays the winding condition of the fiber bundle onto the liner L by the winding device 2. The operation unit 7 is a member for an operator to input winding conditions and the like executed by the winding device 2 to the control device 5, and includes, for example, an operation button not shown.
(Structure of winding device)
Next, the structure of the winding device 2 will be described with reference to fig. 2 and 3. The winding device 2 includes a base 15, support units 20 (support portions of the present invention, a first support unit 21, and a second support unit 22), a hoop winding unit 30, and a helical winding unit 40 (a helical winding head of the present invention).
The base 15 is configured to be able to support the support unit 20, the hoop winding unit 30, and the helical winding unit 40. The base 15 extends in the front-rear direction. The base 15 is arranged in the front-rear direction in the order of the first support unit 21, the hoop winding unit 30, the helical winding unit 40, and the second support unit 22 from the front side. A plurality of guide rails 16 extending in the front-rear direction are disposed on the upper surface of the base 15. The support unit 20 and the hoop winding unit 30 are disposed on the guide rail 16 and configured to be movable in the front-rear direction along the guide rail 16. The spiral winding unit 40 is fixed to the base 15 at the front end of the arrangement space 13 of the creel 3 (see fig. 1).
The support unit 20 includes: a first support unit 21 disposed on the front side of the hoop winding unit 30; and a second support unit 22 disposed on the rear side of the spiral winding unit 40. The support unit 20 supports the sleeve L rotatably about a support shaft 23 extending in the front-rear direction. The support unit 20 includes: a movement motor 24 for moving the support unit 20 in the front-rear direction along the guide rail 16; and a rotation motor 25 (driving device of the present invention) for rotating the sleeve L (see fig. 3). The movement motor 24 and the rotation motor 25 are driven and controlled by the control device 5.
The hoop winding unit 30 is for hoop winding the liner L (winding the fiber bundle in a direction substantially perpendicular to the axial direction of the liner L). The hoop winding unit 30 includes a main body 31 and a rotating member 32. The main body 31 is disposed on the guide rail 16, and supports the rotating member 32 rotatably about the axis of the sleeve L. The rotating member 32 is a member having a circular plate shape. A circular through hole 34 through which the sleeve L can pass is formed in a radial center portion of the rotating member 32. The hoop winding unit 30 is provided with a plurality of bobbins 33 around which fiber bundles are wound. The plurality of bobbins 33 are arranged at equal intervals in the circumferential direction of the rotating member 32.
As shown in fig. 3, the hoop winding unit 30 includes: a movement motor 35 for moving the hoop winding unit 30 in the front-rear direction along the guide rail 16; and a rotation motor 36 for rotating the rotating member 32. The movement motor 35 and the rotation motor 36 are driven and controlled by the control device 5. The controller 5 rotates the rotating member 32 while reciprocating the hoop winding unit 30 along the guide rail 16 so that the liner L passes through the passage hole 34 relatively. Thereby, the plurality of bobbins 33 revolve around the axis of the liner L, and the plurality of fiber bundles are pulled out from the plurality of bobbins 33. The plurality of pulled-out fiber bundles are wound around the surface of the sleeve L in a flush manner.
The helical winding unit 40 performs helical winding on the liner L (winds the fiber bundle F in a direction substantially parallel to the axial direction of the liner L). The helical winding unit 40 includes a main body 41, a plurality of guides 42, and a plurality of nozzles 43. The main body 41 is disposed upright on the base 15. A circular passage hole 44 through which the sleeve L can pass in the front-rear direction is formed in the center portion of the main body portion 41 in the left-right direction. The plurality of guides 42 and the plurality of nozzles 43 are arranged along the circumferential direction of the passage hole 44. The fiber bundles F drawn out from the bobbins B arranged in the creel 3 are passed through the guides 42 to the nozzles 43. The nozzle 43 extends in the radial direction of the sleeve L, and guides the fiber bundle F from the outside toward the inside in the radial direction. The nozzle 43 has a plurality of tubular members of different diameters that are coaxially arranged in a nested manner. This structure can expand and contract in the radial direction and can rotate with the longitudinal direction of the nozzle 43 as the rotation axis direction.
As shown in fig. 3, the helical winding unit 40 includes a guide movement motor 45 for moving the nozzle 43 and a guide rotation motor 46 for rotating the nozzle 43. The guide moving motor 45 and the guide rotating motor 46 are driven and controlled by the control device 5. The controller 5 moves the plurality of nozzles 43 in the radial direction of the liner L in accordance with the outer shape of the liner L while reciprocating the support unit 20 along the guide rail 16 so that the liner L passes through the passage hole 44. Thereby, the plurality of fiber bundles F drawn out from the plurality of nozzles 43 are spirally wound around the surface of the liner L at once.
When the winding device 2 starts the winding operation of the fiber bundle F to the liner L, first, for example, an operator fixes the yarn end of the fiber bundle F to the liner L with an adhesive tape or the like. After the yarn end of the fiber bundle F is fixed to the liner L, the control device 5 controls the driving of the motors 24, 25, 35, 36, 45, and 46 (see fig. 3). Accordingly, the hoop winding can be performed by the hoop winding unit 30 and the helical winding can be performed by the helical winding unit 40 with respect to the liner L supported by the support unit 20.
Before starting the winding operation of the fiber bundle F into the liner L, it is necessary to pull out the plurality of fiber bundles F from the plurality of bobbins B and wind the fiber bundle F around a guide member or the like disposed on the traveling path of the fiber bundle F (that is, to perform a yarn winding operation). As described above, the number of the fiber bundles F spirally wound around the sleeve is very large, and for example, 180 fiber bundles F need to be guided to the sleeve. The path of the fiber bundle F is not straight but curved (see fig. 1, for example), and a plurality of guides and the like need to be hung from the bobbin B to the sleeve L. Therefore, the operation of hanging the fiber bundle F by the manual operation takes a lot of labor. Therefore, the filament winding device 1 according to the present embodiment has the following configuration in order to save labor for the yarn winding operation and to reliably guide the fiber bundle F to the spiral winding unit.
(fiber bundle guide route and Standard yarn guide route)
A basic configuration for facilitating the yarn hanging operation will be described with reference to fig. 4. Fig. 4 (a) is an explanatory diagram showing a fiber bundle guide path 50 through which 1 of the plurality of fiber bundles F is guided from the bobbin B to the sleeve L, and a standard yarn guide path 60 through which a standard yarn Y (described in detail later) corresponding to the 1 fiber bundle F is guided to the sleeve L. Fig. 4 (b) is a diagram showing a state in which the standard yarn Y is guided along the standard yarn guide path 60. Fig. 4 (c) is a diagram showing a state in which the standard yarn Y has moved from the standard yarn guide path 60 to the fiber bundle guide path 50. Although the actual fiber bundle guide path 50 and the standard yarn guide path 60 are curved, the fiber bundle guide path 50 and the standard yarn guide path 60 are schematically shown in an approximately straight line in fig. 4 (a) to (c) for simplicity of illustration. In the following description, the direction in which the fiber bundle F travels is referred to as the fiber bundle travel direction. The direction in which the standard yarn Y travels is set as the standard yarn travel direction. The direction of travel of the fiber bundle is substantially the same as the direction of travel of the standard yarn and is therefore indicated by the same arrows in fig. 4.
The fiber bundle guide path 50 is a path for guiding the fiber bundle F when spirally winding the fiber bundle F with respect to the sleeve L. As shown in fig. 4 (a) to (c), a fiber bundle guide section 51, a tension applying section 52, a slack eliminating section 53, and the like are arranged on the fiber bundle guide path 50.
The fiber bundle guide 51 is configured to be capable of guiding the fiber bundle F to the downstream side in the fiber bundle advancing direction. The fiber bundle guide 51 includes a plurality of guide rollers 54 that guide the fiber bundle F. The tension applying unit 52 applies a predetermined tension to the fiber bundle F. The slack eliminating unit 53 suppresses the occurrence of slack in the fiber bundle F. The tension applying unit 52 and the slack eliminating unit 53 also include a plurality of guide rollers 54 (not shown in fig. 4). The guide rollers 54 of the tension applying unit 52 and the slack eliminating unit 53 include a fixed guide roller and a movable guide roller (details will be described later).
The standard yarn guide path 60 is a path for guiding the standard yarn Y to the liner L before the fiber bundle F is guided to the fiber bundle guide path 50 at the time of the yarn hanging operation. The yarn hanging operation of the present embodiment refers to the following operation: the standard yarn Y is guided to the sleeve L along the standard yarn guide path 60 (see fig. 4 b), the standard yarn Y is moved from the standard yarn guide path 60 to the fiber bundle guide path 50 (see fig. 4 c), and the fiber bundle F connected to the standard yarn Y is guided to the sleeve L along the fiber bundle guide path 50.
The standard yarn guide path 60 is formed along the fiber bundle guide path 50. The standard yarn guide path 60 is provided with: a standard yarn buffer 61 for storing a standard yarn Y; and a standard yarn guide mechanism 62 that blows off the standard yarn Y to the sleeve L with a force such as compressed air. The standard yarn guide mechanism 62 has: a plurality of nozzles 63 for blowing the standard yarn Y with compressed air; and a plurality of guide tubes 64 for guiding the standard yarn Y blown off by the nozzle 63. In fig. 4, 3 nozzles 63 and 3 guide pipes 64 are illustrated, but the number of nozzles 63 and guide pipes 64 is not limited to this. The reference yarn guide mechanism 62 is configured to be able to take out the reference yarn Y from the reference yarn guide path 60 to the fiber bundle guide path 50 (see the arrows of the plurality of two-dot chain lines in fig. 4 (c).
(Standard yarn)
Next, the standard yarn Y will be explained. The standard yarn Y is a yarn that is guided to the liner L prior to the fiber bundle F when the yarn hanging operation is performed. The standard yarn Y is a different kind of yarn from the fiber bundle F. Further, the yarn is a light-weight and hardly dispersible yarn made of silk or the like used for cotton yarn used for strings or the like, fishing line, or the like. The standard yarn Y does not contain resin or the like. One end of the standard yarn Y is connected to the front end of the fiber bundle F. A head H (see fig. 5) for facilitating blowing of the standard yarn Y by the nozzle 63 is connected to the other end of the standard yarn Y, for example. The standard yarn Y is longer than the standard yarn guide path 60.
Here, the reason why the standard yarn Y is blown off instead of the fiber bundle F by the standard yarn guide mechanism 62 instead of blowing off the fiber bundle F will be described. First, since the bobbin B around which the fiber bundle F is wound is heavy, the bobbin B is hard to be rotated even when the fiber bundle F is blown off by the compressed air supplied to the nozzle 63. Therefore, the fiber bundle F is difficult to unwind from the bobbin B. When the fiber bundle F impregnated with the resin is blown off by the nozzle 63, the resin adheres to the nozzle 63 or the guide pipe 64. Therefore, cleaning of the nozzle 63 or the guide pipe 64 is difficult. Further, the fiber bundle F itself may be attached to the inside of the guide pipe 64 and may be clogged in the middle. Therefore, it is difficult to blow off the fiber bundle F impregnated with the resin by the standard yarn guide mechanism 62. Even if the fiber bundle F is blown off by the nozzle 63 without being impregnated with the resin, the fiber bundle F is scattered by the air flow, and thus it is very difficult to blow off the fiber bundle F. For the above reasons, in the present embodiment, the standard yarn Y is used which is light and easy to blow off, is difficult to adhere to the guide pipe 64 and the like, and is difficult to disperse by the air flow generated at the nozzle 63.
(Components of the fiber bundle guide route and the standard yarn guide route)
Next, the components in the fiber bundle guide path 50 and the standard yarn guide path 60 will be described with reference to fig. 5 to 9.
First, the structure around the bobbin supporting portion 12 will be described with reference to fig. 5. Fig. 5 shows a state in which the fiber bundle F is wound around the liner L (hereinafter, a state in a normal operation). The bobbin B is fitted to the bobbin support portion 12. A standard yarn buffer 61 is arranged in the vicinity of the bobbin supporting part 12. The standard yarn buffer 61 is, for example, a round bar-shaped member fixed to the support frame 11 (see fig. 1) of the creel 3. Alternatively, the standard yarn buffer 61 may be rotatably supported by the support frame 11. The standard yarn Y is wound and stored in the standard yarn buffer 61.
Next, the standard yarn guide mechanism 62 will be explained. A standard yarn guide mechanism 62 is disposed downstream of the standard yarn buffer 61 in the standard yarn running direction. The standard yarn guide mechanism 62 has a plurality of nozzles 63 and a plurality of guide tubes 64. The standard yarn guide mechanism 62 blows off the standard yarn Y by a nozzle 63 to which compressed air is supplied, and guides the blown-off standard yarn Y to the sleeve L by a guide pipe 64.
The nozzle 63 will be described with reference to fig. 6. Fig. 6 (a) is a perspective view of the nozzle 63. Fig. 6 (b) is a side view of the nozzle 63. Fig. 6 (c) is a view of the nozzle 63 as viewed from the upstream side in the normal yarn running direction. For the sake of convenience of explanation, the directions shown in fig. 6 are front-rear, left-right, up-down directions, and these directions are described in the explanation of the nozzle 63. These directions do not necessarily coincide with the front-back, left-right, and up-down directions in fig. 1 and the like.
The nozzle 63 is configured to blow off the standard yarn Y with compressed air (compressed gas of the present invention), for example. The nozzle 63 has a nozzle body 63 a. The nozzle body 63a is, for example, a member having a substantially rectangular parallelepiped shape. A through hole 63b penetrating in the front-rear direction is formed in a lower portion of the nozzle body 63 a. A fitting hole 63c into which an end of a pipe (not shown) for supplying compressed air connected to a compressed air source (not shown) is fitted is formed at a front end portion of an upper portion of the nozzle body 63 a. A communication hole 63d (see fig. 6 (b)) is formed in the nozzle body 63a to communicate the rear portion of the through hole 63b with the attachment hole 63 c. Compressed air is supplied into the through hole 63b through the attachment hole 63c and the communication hole 63d (see the solid arrow in fig. 6 b), whereby negative pressure is generated in the through hole 63 b. When the standard yarn Y is inserted into the through hole 63b from the front, the standard yarn Y is blown off rearward (see the two-dot chain line arrow in fig. 6 b).
A slit 63e (see fig. 6 (a) and (c)) is formed in the nozzle body 63a below the through hole 63b over the entire length in the front-rear direction so as to communicate the through hole 63b with the outside. By forming the slit 63e, the standard yarn Y guided to the liner L can be taken out from the through hole 63 b.
A nozzle cover 65 for closing the slit 63e is disposed below the nozzle body 63 a. The nozzle cover 65 is movable between a closed position (see solid lines in fig. 6 c) for closing the slit 63e and an open position (see two-dot chain lines in fig. 6 c) for opening the slit 63 e. The nozzle cover 65 is moved by an actuator 66, for example (see the two-dot chain line arrow in fig. 6 c). The actuator 66 is electrically connected to the control device 5. When the nozzle cover 65 is in the closed position, the standard yarn Y in the through hole 63b can be prevented from coming out of the through hole 63b through the slit 63e, and leakage of the compressed air can be prevented. As a result, the standard yarn Y is stably conveyed. When the nozzle cover 65 is in the open position, the standard yarn Y in the through hole 63b can be taken out through the slit 63 e.
Next, a plurality of guide tubes 64 will be described. The plurality of guide pipes 64 are pipes for guiding the standard yarn Y blown off by the nozzle 63 toward the downstream side in the standard yarn traveling direction. The plurality of guide tubes 64 are hollow members through which the standard yarn Y can be inserted. As will be described later in detail, each guide tube 64 has a slit 64b (see fig. 7 c), and a guide cover 67 (see fig. 7 c) is disposed near the slit 64 b.
As the plurality of guide pipes 64, there are linear guide pipes 64 and also curved guide pipes 64. Further, as the plurality of guide pipes 64, there are guide pipes 64 whose positions are fixed, and there are also guide pipes 64 that can move. A specific example of the guide tube 64 corresponding to each configuration on the fiber bundle guide path 50 will be described below.
(fiber bundle guide)
First, an example of the guide tube 64 disposed in the vicinity of the fiber bundle guide 51 will be described with reference to fig. 7. Fig. 7 (a) is a view of the guide roller 54 and the guide pipe 64 disposed along the guide roller 54 as viewed from the axial direction of the guide roller 54. Fig. 7 (b) is a view of only the guide tube 64 as viewed from the direction of the arrow vii (b). Fig. 7 (c) is a sectional view of vii (c) -vii (c) of fig. 7 (a).
As described above, the fiber bundle guide 51 has the plurality of guide rollers 54. As shown in fig. 7 (a), a guide pipe 68 as an example of the guide pipe 64 is disposed in the vicinity of the guide roller 55 which is one of the guide rollers 54. The guide pipe 68 is provided along the circumferential surface 55a (see fig. 7 c) of the guide roller 55, and includes a curved portion 68a (see the thick line of fig. 7 a). The upstream-side end of the guide pipe 68 is connected to the nozzle 63.
The guide pipe 68 has a slit 68b formed over the entire length in the direction in which the guide pipe 68 extends (extending direction) (see fig. 7 (b) and (c)). By forming the slit 68b, the regular yarn Y guided to the sleeve L can be taken out from the guide tube 68. In the guide pipe 68 provided along the circumferential surface 55a of the guide roller 55, the slit 68b is disposed at a position facing the circumferential surface 55a (see fig. 7 (c)).
The standard yarn guide mechanism 62 has a guide cover 69 for closing the slit 68b (see fig. 7 c). The guide cover 69 is movable between a closed position (see solid lines in fig. 7 (c)) for closing the slit 68b and an open position (see two-dot chain lines in fig. 7 (c)) for opening the slit 68 b. The guide cover 69 is moved by, for example, an actuator 70 (see the two-dot chain line arrow in fig. 7 c). The actuator 70 is electrically connected to the control device 5. When the guide cover 69 is in the closed position, the standard yarn Y in the guide tube 68 can be prevented from coming out of the guide tube 68 through the slit 68b, and leakage of the compressed air can be prevented. As a result, the standard yarn Y is stably conveyed. When the guide cover 69 is in the open position, the standard yarn Y in the guide tube 68 can be taken out through the slit 68 b.
The above description relates to an example of the guide tube 64. That is, as a common matter, slits 64b for allowing the standard yarn Y to be taken out are formed in all the guide tubes 64. The standard yarn guide mechanism 62 has a plurality of guide piece covers 67 movable between a closed position blocking the slits 64b of the respective guide tubes 64 and an open position opening the slits 64 b. The slit 64b arranged along the circumferential surface 54a of the guide roller 54 faces the circumferential surface 54 a. The same applies to the following description.
When both the nozzle cover 65 and the guide cover 67 are in the open position, the standard yarn Y can be taken out from the standard yarn guide path 60 through the slit 63e of the nozzle 63 and the slit 64b of the guide tube 64 and moved to the fiber bundle guide path 50. In the standard yarn guide mechanism 62, the state in which both the nozzle cover 65 and the guide cover 67 are located at the closed position corresponds to the restricted state of the present invention. The state in which both the nozzle cover 65 and the guide cover 67 are in the open position corresponds to the allowable state of the present invention.
(tension applying part)
Next, the tension applying portion 52 and the guide pipe 64 disposed in the vicinity thereof will be described with reference to fig. 8. The tension applying unit 52 is a member for applying a predetermined tension to the fiber bundle F. The tension applying portion 52 has a base plate 71 and 5 guide rollers 54 as one example as shown in fig. 8. As the 5 guide rollers 54, 3 fixed rollers 72, 73, and 74 attached to the base plate 71 and fixed in position, and 2 movable rollers 75 and 76 that can move are provided. The fixed roller 72, the movable roller 75, the fixed roller 73, the movable roller 76, and the fixed roller 74 are provided in this order from the upstream side in the fiber bundle traveling direction (see the solid arrow in fig. 8). The movable rollers 75 and 76 are movable by actuators 77 and 78, respectively, for example (see the two-dot chain line arrows in fig. 8). The actuators 77 and 78 are electrically connected to the control device 5. In the normal operation, the traveling path of the fiber bundle F is complicatedly bent by the 5 guide rollers 54. Therefore, the tension applying portion 52 has the following configuration in order to simplify the standard yarn guide path 60.
The tension applying portion 52 is also provided with a plurality of guide pipes 64 as described above. Specifically, 3 fixed guide pipes 82, 83, and 84 are provided at fixed positions with respect to the fixed rollers 72, 73, and 74. Further, 2 movable guide pipes 85, 86 fixed to the movable rollers 75, 76, respectively, are provided. The movable guide pipes 85, 86 are movable integrally with the movable rollers 75, 76, respectively. The fixed guide tubes 82, 83, 84 are linearly arranged. The upstream-side end portion of the fixed guide pipe 82 is connected to the nozzle 63.
The movable rollers 75, 76 are movable between a normal position (see the solid line in fig. 8) at which the fiber bundle F is guided while applying tension to the fiber bundle F, and a standard yarn guide position (see the two-dot chain line in fig. 8) at which the movable guide pipes 85, 86 are linearly arranged together with the fixed guide pipes 82, 83, 84. When the movable guide pipe 85 is located at the standard yarn guide position, the downstream-side end of the fixed guide pipe 82 (movable guide pipe 85 side) and the upstream-side end of the movable guide pipe 85 (fixed guide pipe 82 side) face each other, and the downstream-side end of the movable guide pipe 85 and the upstream-side end of the fixed guide pipe 83 face each other. Similarly, when the movable guide pipe 86 is located at the normal yarn guide position, the downstream end of the fixed guide pipe 83 and the upstream end of the movable guide pipe 86 are opposed to each other, and the downstream end of the movable guide pipe 86 and the upstream end of the fixed guide pipe 84 are opposed to each other.
(slack eliminating section)
Next, the slack eliminating section 53 and the guide pipe 64 arranged in the vicinity thereof will be described with reference to fig. 9. The slack eliminating unit 53 is configured to be able to suppress the occurrence of slack in the fiber bundle F. As shown in fig. 9, the slack eliminating section 53 includes a fixed roller 91 and a movable roller 92 as a guide roller 54, similarly to the tension applying section 52. The movable roller 92 is disposed downstream of the fixed roller 91 in the fiber bundle traveling direction (see the solid arrow in fig. 9). The movable roller 92 is moved by an actuator 93 (see the arrow of the two-dot chain line in fig. 9), for example. The actuator 93 is electrically connected to the control device 5. In the normal operation, the fiber bundle F is guided in an S-shape by the 2 guide rollers 54, and the traveling path thereof is bent.
Therefore, as the guide pipe 64, a fixed guide pipe 94 is provided near the fixed roller 91, and a movable guide pipe 95 is provided near the movable roller 92, as in the tension applying section 52. The upstream-side end portion of the fixed guide pipe 94 is connected to the nozzle 63. The movable roller 92 is movable between a normal position (see a solid line in fig. 9) at which the fiber bundle F is guided and a standard yarn guide position (see a two-dot chain line in fig. 9) at which the standard yarn Y is guided. When the movable guide pipe 95 is located at the normal yarn guiding position, the upstream end of the movable guide pipe 95 and the downstream end of the fixed guide pipe 94 are opposed to each other.
(method of hanging yarn)
Next, a yarn winding method in the filament winding device 1 having the above-described structure will be described with reference to fig. 10 to 18. Fig. 10 is a flow chart showing a series of yarn hanging methods. Other drawings will be described as appropriate as necessary.
The initial state before the yarn hanging operation is performed is as follows. The fiber bundle F is not pulled out from the bobbin B and is not arranged on the fiber bundle guide path 50. The nozzle cover 65 and the guide cover 67 of the standard yarn guide 62 are both in the closed position. The movable rollers 75 and 76 of the tension applying section 52 and the movable roller 92 of the slack eliminating section 53 are positioned at the standard yarn guiding position (see fig. 11 (a) and (b)). As a result, the plurality of guide tubes 64 are linearly arranged on the standard yarn guide path 60. The standard yarn buffer 61 stores a standard yarn Y longer than the standard yarn guide path 60. One end of the standard yarn Y is connected to the fiber bundle F (see fig. 12 (a)). Compressed air is supplied toward the nozzle 63.
First, as shown in fig. 12 (a), the worker inserts the other end portion (end portion on the side where the head portion H is connected) of the standard yarn Y into the most upstream nozzle 63 of the standard yarn guide mechanism 62, blows off the standard yarn Y by the plurality of nozzles 63 and the plurality of guide pipes 64, and guides the yarn Y to the vicinity of the liner L (standard yarn guide step of the present invention, S201). At this time, since the movable roller 75 is located at the reference yarn guiding position (see fig. 11 (a) and (b)) as described above, the reference yarn Y is smoothly guided within the plurality of guide pipes 64 even in the tension applying portion 52 and the slack eliminating portion 53. Further, since the nozzle cover 65 and the guide cover 67 are located at the closed position, the standard yarn Y can be prevented from coming out of the standard yarn guide path 60. After the standard yarn Y is guided to the vicinity of the sleeve L, as shown in fig. 12 (b), the standard yarn Y is entirely unwound from the standard yarn temporal region 61. On the other hand, the fiber bundle F is not unwound from the bobbin B and remains as it is because the bobbin B is heavy and is hard to rotate.
Next, the worker fixes the end of the standard yarn Y guided to the vicinity of the sleeve L to the sleeve L as shown in fig. 13 (S202). In addition, the head H connected to the standard yarn Y can be detached from the standard yarn Y at this stage. The gauge yarn Y may be fixed to the small-diameter nose La of the liner L, for example. As a result, as will be described later, the standard yarn Y is wound around the nose La, and the fiber bundle F is guided to the nose La, whereby the spiral winding can be started as it is.
Next, the operator operates the operation unit 7 of the control panel 4 (see fig. 1) to cause the control device 5 to drive the actuators 66 and 70 (see fig. 14). Fig. 14 (a) is an explanatory view showing a state in which the nozzle cover 65 is located at the open position, and fig. 14 (b) is an explanatory view showing a state in which the guide cover 67 is located at the open position. That is, the worker drives the actuators 66 and 70 to move the nozzle cover 65 and the guide cover 67 from the closed position (see the two-dot chain lines, respectively) to the open position (see the solid lines, respectively) (S203). Thus, the standard yarn Y can be taken out from the standard yarn guide path 60 through the slit 63e of the nozzle 63 and the slit 64b of the guide pipe 64.
Next, the operator operates the operation unit 7 of the control panel 4 to cause the control device 5 to drive the actuators 77 and 78 (see fig. 8) of the tension applying unit 52 and the actuator 93 (see fig. 9) of the slack eliminating unit 53. That is, as shown in fig. 15 (a) and (b), the movable rollers 75 and 76 of the tension applying portion 52 and the movable roller 92 of the slack eliminating portion 53 are returned from the standard yarn guiding position (see the two-dot chain lines, respectively) to the normal position (see the solid lines, respectively) (S204). Thereby, the fiber bundle guide path 50 is formed. Further, a slight tension is applied to the standard yarn Y by the movement of the movable roller 75 and the like. At this time, since the nozzle cover 65 and the guide cover 67 are positioned at the open position, the standard yarn Y is taken out from the guide pipe 64 of the tension applying portion 52 and the guide pipe 64 of the slack eliminating portion 53 through the slit 64b and moved toward the fiber bundle guide path 50.
Next, the operator or the staff operates the operation unit 7 of the control panel 4 to cause the control device 5 to drive the rotation motor 25 (see fig. 3) of the support unit 20, thereby rotating the liner L (S205). Thereby, as shown in fig. 16, the standard yarn Y starts to be wound around the nose La of the liner L. The standard yarn Y is wound around the sleeve L, and tension is applied to the standard yarn Y. As a result, the standard yarn Y remaining in the guide pipe 64 is taken out and moved to the peripheral surface 54a of the guide roller 54 (see fig. 17). Then, by applying tension to the standard yarn Y, the standard yarn Y is also taken out from the through hole 63b of the nozzle 63. In this way, the entire standard yarn Y is moved from the standard yarn guide path 60 to the fiber bundle guide path 50 (standard yarn moving step).
Then, by winding the standard yarn Y around the liner L, the fiber bundle F connected to the standard yarn Y is also pulled out from the bobbin B and starts moving downstream as shown in fig. 18 in parallel with the standard yarn moving step. Here, if the rotation of the sleeve L is too fast, there is a possibility that the fiber bundle F enters the nozzle 63 or the guide pipe 64 before the full movement of the regular yarn Y to the fiber bundle guide path 50. Further, when the fiber bundle F enters the nozzle 63 or the guide pipe 64, or when the fiber bundle F is taken out from the nozzle 63 or the guide pipe 64, the fiber bundle F may be damaged. Therefore, it is preferable to adjust the rotational speed of the sleeve L so that the entire standard yarn Y is moved from the standard yarn guide path 60 to the fiber bundle guide path 50 (that is, the standard yarn moving step is completed) before the fiber bundle F enters the most upstream nozzle 63, as shown in fig. 18.
When the sleeve L is further rotated, the entire standard yarn Y is wound around the sleeve L, and the fiber bundle F is pulled out to the vicinity of the sleeve L (fiber bundle pulling-out step). That is, the rotation motor 25 also corresponds to the drawing device of the present invention. In this way, the standard yarn moving step and the fiber bundle drawing step can be easily performed by 1 operation of rotating the sleeve L, and these two steps are partially performed in parallel.
When the liner L is further rotated, the fiber bundle F pulled out is wound around the nose La of the liner L as it is. Then, the spiral winding can be started as it is (S206). Thus, the yarn hanging operation is finished.
As described above, instead of the fiber bundle F, the standard yarn Y connected to the fiber bundle F is guided to the liner L along the standard yarn guide path 60 by the nozzle 63 and the guide pipe 64. After the standard yarn Y reaches the sleeve L, the standard yarn Y can be taken out of the standard yarn guide path 60 and moved to the fiber bundle guide path 50. Further, by pulling the standard yarn Y toward the sleeve L, the fiber bundle F connected to the standard yarn Y can be pulled out along the fiber bundle guide path 50 and guided to the sleeve L. Therefore, the fiber bundle F can be reliably guided to the spiral winding unit 40 while saving labor for the yarn hanging work.
The standard yarn Y is fixed to the liner L supported by the support unit 20, and the liner L is rotationally driven by the rotation motor 25, whereby the standard yarn Y can be wound around an end portion of the liner L or the like. Thereby, the fiber bundle F connected to the standard yarn Y can be pulled out to the sleeve L by the rotation of the sleeve L. Therefore, as compared with the case where the fiber bundle F connected to the standard yarn Y is pulled out by a manual operation, the labor for the yarn hanging operation can be further saved. Further, since it is not necessary to separately provide a device for pulling out the standard yarn Y and the fiber bundle F, an increase in cost can be suppressed.
Further, by forming the slit 63e in the nozzle main body 63a, the standard yarn Y guided to the liner L can be taken out from the nozzle 63 with a simple configuration.
Further, by forming the slit 64b in the guide pipe 64, the standard yarn Y guided to the sleeve L can be taken out from the guide pipe 64 by a simple configuration.
Further, by maintaining the standard yarn guide mechanism 62 in the restricted state until the standard yarn Y is blown off from the nozzle 63 and reaches the sleeve L, the standard yarn Y can be prevented from coming off from the standard yarn guide path 60. Then, by switching the standard yarn guide mechanism 62 to the permission state after the standard yarn Y reaches the sleeve L, the standard yarn Y can be taken out from the standard yarn guide path.
The standard yarn Y can be prevented from coming out of the nozzle 63 by closing the slit 63e with the nozzle cover 65, and the standard yarn Y can be taken out of the nozzle 63 by opening the slit 63 e. In this way, the state of the nozzle 63 can be switched between the state in which the standard yarn Y is prevented from coming out of the nozzle 63 and the state in which the standard yarn Y can be taken out by a simple structure.
Further, the standard yarn Y can be prevented from coming off the guide pipe 64 by closing the slit 64b with the guide cover 67, and the standard yarn Y can be taken out from the guide pipe 64 by opening the slit 64 b. In this way, the state of the guide pipe 64 can be switched between the state in which the standard yarn Y is prevented from coming off the guide pipe 64 and the state in which the standard yarn Y can be taken out by a simple structure.
The standard yarn Y is blown off while being pulled out from the standard yarn buffer 61 by the nozzle 63. Therefore, by appropriately forming the path of the standard yarn Y from the standard yarn buffer 61 to the nozzle 63, it is possible to suppress the standard yarn Y from catching or winding on peripheral members or the like.
The curved portion of the guide pipe 64 (for example, the curved portion 68a of the guide pipe 68) is disposed along the circumferential surface 54a of the guide roller 54, and the standard yarn Y can be taken out from a position facing the guide roller 54. Therefore, the standard yarn Y can be smoothly moved from the guide pipe 64 on the standard yarn guide path 60 to the guide roller 54 on the fiber bundle guide path 50. Therefore, the standard yarn Y can be prevented from being separated from the guide roller 54 when the standard yarn Y is moved.
Then, the movable roller 75 and the like are moved together with the movable guide pipe 85 and the like to the standard yarn guide position, and for example, the end of the fixed guide pipe 82 and the end of the movable guide pipe 85 face each other, thereby forming the standard yarn guide path 60. Therefore, even when the fiber bundle guide path 50 is complicated, the standard yarn guide path 60 can be simplified by devising the position where the movable guide pipe 85 and the like are arranged. Further, after the standard yarn Y is guided to the sleeve L, the fiber bundle guide path 50 is formed by returning the movable roller 75 and the like to the normal position, and therefore the standard yarn Y can be efficiently moved to the fiber bundle guide path 50.
Further, since the standard yarn Y is longer than the standard yarn guide path 60, the standard yarn Y can be guided to the liner L over the entire length of the standard yarn guide path 60. Therefore, the fiber bundle F can be guided to the liner L along the fiber bundle guide path 50 without contacting the nozzle 63 or the guide pipe 64, and thus damage or the like to the fiber bundle F due to contact of the nozzle 63 or the guide pipe 64 with the fiber bundle F can be prevented. Further, since the standard yarn Y does not need to be blown off together with the fiber bundle F, it is not necessary to rotate the heavy bobbin B when the standard yarn Y is blown off. Therefore, the standard yarn Y can be easily made to reach the sleeve L by the nozzle 63.
Then, by completing the movement of the standard yarn Y to the fiber bundle guide path 50 before the fiber bundle F enters the nozzle 63, the tip end portion of the fiber bundle F is also moved to the fiber bundle guide path 50 together with the standard yarn Y. Therefore, the fiber bundle F can be prevented from entering the nozzle 63 or the guide pipe 64, and the fiber bundle F can be prevented from being damaged by contact with the nozzle 63 or the guide pipe 64.
Then, by winding the standard yarn Y guided to the liner L, the standard yarn Y is tensioned to move from the standard yarn guide path 60 to the fiber bundle guide path 50, and the fiber bundle F continuous with the standard yarn can be pulled out toward the liner L. In this way, at least a part of the fiber bundle drawing step can be performed in parallel with the standard yarn moving step, and thus the working time can be shortened.
Next, a modified example will be described in which the above embodiment is modified. However, the same reference numerals are given to the same components as those of the above embodiment, and the description thereof will be omitted as appropriate.
(1) In the above embodiment, the standard yarn buffer 61 provided in the vicinity of the bobbin supporting portion 12 stores the standard yarn Y, but is not limited thereto. Alternatively, for example, as shown in fig. 19, the standard yarn Y may be wound around the outer periphery of the bobbin B around which the fiber bundle F is wound to store the standard yarn Y. Further, a motor 96 (bobbin driving device of the present invention) for rotationally driving the bobbin B may be provided. As a result, the standard yarn Y can be unwound from the bobbin B while rotating the bobbin B, and the standard yarn Y can be blown off by the nozzle 63. In the case where the fiber bundle F is impregnated with the resin, the outer periphery of the fiber bundle F wound around the bobbin B may be covered with a film or the like, not shown, in order to prevent the standard yarn Y from being impregnated with the resin.
(2) In the embodiments up to the above, the standard yarn Y is pulled out from the standard yarn guide path 60 by applying tension to the standard yarn Y by rotating the sleeve L, but the present invention is not limited to this. For example, as shown in fig. 20, a tension applying device 97 or the like may be provided in the middle of the standard yarn guide path 60. The tension applying device 97 has, for example, a retractable hook 97 a. In such a configuration, after the standard yarn Y reaches the liner L, the tension applying device 97 is operated to extend the hook 97a to the gap between the plurality of guide pipes 64, and the hook 97a is hooked on the standard yarn Y. Further, the standard yarn Y may be moved from the standard yarn guide path 60 toward the fiber bundle guide path 50 by applying tension to the standard yarn Y by contracting the hook 97a, and then the fiber bundle F may be pulled out by rotating the sleeve L. In other words, the reference yarn moving step may be completed before the fiber bundle drawing step is started. This can more reliably prevent the fiber bundle F from contacting the nozzle 63 or the guide pipe 64. Alternatively, instead of the tension applying device 97, the worker may manually move the standard yarn Y from the standard yarn guide path 60 to the fiber bundle guide path 50.
(3) In the embodiments up to the above embodiments, the standard yarn Y can be taken out from the standard yarn guide path 60 to the fiber bundle guide path 50 by forming the slit 64b in the guide pipe 64, but the present invention is not limited to this. For example, 1 guide tube 64 may also be formed from 2 half-section tubes. That is, when the standard yarn Y is blown off by the nozzle 63, the standard yarn Y can be prevented from coming off by coupling the 2 half-sections to each other, and when the standard yarn Y is taken out, the 2 half-sections can be separated to allow the standard yarn Y to be taken out. The nozzle body 63a may be formed of 2 parts as well.
(4) In the embodiments up to the above embodiments, the slit 63e is closed by the nozzle cover 65, and the slit 64b is closed by the guide cover 67, but the present invention is not limited to this. For example, instead of the nozzle cover 65 or the guide cover 67, a slit may be provided in the film to allow the standard yarn Y to be pulled out by the tension of the standard yarn Y. Alternatively, the width or shape of the slit may be designed so that the standard yarn Y does not come out of the standard yarn guide path 60 when the standard yarn Y is blown off by the nozzle 63, and the nozzle cover 65 or the guide cover 67 may be omitted.
(5) In the yarn hanging operation, instead of the worker, a robot or the like may perform an operation of fixing the standard yarn Y to the sleeve L after the standard yarn Y reaches the vicinity of the sleeve L by the nozzle 63 and the guide pipe 64. For example, a fixing device (not shown) for fixing the standard yarn Y may be provided near the spiral winding unit 40.
(6) In the yarn hanging operation, after the standard yarn Y reaches the vicinity of the liner L by the nozzle 63 and the guide pipe 64, the standard yarn Y may be wound by using another device for winding the standard yarn Y instead of the liner L and the rotating motor 25. In this way, the fiber bundle F can be pulled out to the vicinity of the liner L.
(7) In the yarn hooking operation, the worker may manually perform operations such as the movement of the nozzle cover 65 and the guide cover 67 to the open position after the standard yarn Y reaches the vicinity of the sleeve L by the standard yarn guide mechanism 62, the operation of taking out the standard yarn Y from the standard yarn guide path 60, and the operation of pulling out the fiber bundle F.
(8) In the yarn hooking operation, the order of step S203 and step S204 may be interchanged. In this case, when the movable roller 75 and the like are returned from the standard yarn guide position to the normal position, the standard yarn Y is accumulated in the guide pipe 64. Even in this case, by rotating the sleeve L in step S205, all the standard yarns Y are taken out from the standard yarn guide path 60.
(9) The length of the standard yarn Y may be the same as the standard yarn guide path 60 or shorter than the standard yarn guide path 60. In this case, a part of the fiber bundle F also enters the nozzle 63 or the like at the time when the standard yarn Y reaches the vicinity of the liner L. However, for example, in the case where the fiber bundle F does not contain the resin impregnated therein, even if the fiber bundle F enters the nozzle 63 or the guide pipe 64, the resin does not adhere to the nozzle 63 or the guide pipe 64. In such a case, the fiber bundle F may also be allowed to enter the nozzle 63 or the like.
Description of the reference numerals
1 filament winding device
12 bobbin supporting part (yarn supply part)
20 support unit (support part)
25 rotating motor (driving device, drawing device)
40 spiral winding unit (spiral winding head)
50 fiber bundle guide path
54 guide roller
60 standard yarn guide path
61 Standard yarn buffer
62 standard yarn guide mechanism
63 spray nozzle
63e slit
64 guide tube
64b slit
65 nozzle cap
67 guide cover
72. 73, 74 fixed roller
75. 76 Movable roller
82. 83, 84 fixed guide tube
85. 86 movable guide tube
F fiber bundle
L-shaped sleeve
Y standard yarn

Claims (17)

1. A filament winding device is characterized by comprising:
a support portion rotatably supporting the sleeve;
a yarn feeding section for supporting a bobbin around which a fiber bundle to be wound around the liner is wound;
a spiral winding head that spirally winds the fiber bundle running on a fiber bundle guide path formed from the yarn feeding portion to the sleeve, around the sleeve; and
a standard yarn guide mechanism for forming a standard yarn guide path for guiding a standard yarn, which is different from the fiber bundle and is connected to a tip end of the fiber bundle, from the bobbin to the sleeve,
the standard yarn guide mechanism comprises: a nozzle for blowing the standard yarn by using compressed gas; and a guide pipe for guiding the standard yarn blown off by the nozzle,
the nozzle and the guide pipe are arranged along the fiber bundle guide path, and configured to be able to take out the standard yarn from the standard yarn guide path to the fiber bundle guide path.
2. Filament winding device according to claim 1,
the yarn winding device further includes a drawing device that takes out the standard yarn from the standard yarn guide path to the fiber bundle guide path by winding the standard yarn guided to the liner, and draws the fiber bundle connected to the standard yarn to the liner along the fiber bundle guide path.
3. Filament winding device according to claim 2,
the support part has a driving device for rotationally driving the sleeve,
the drawing device is the driving device.
4. A filament winding device according to any one of claims 1 to 3,
the nozzle is formed with a slit capable of taking out the standard yarn from the nozzle.
5. A filament winding device according to any one of claims 1 to 4,
the guide tube has a slit formed over the entire length in the direction in which the guide tube extends.
6. A filament winding device according to any one of claims 1 to 5,
the standard yarn guide mechanism is capable of switching between a restricted state in which the standard yarn is prevented from falling out of the standard yarn guide path and an allowed state in which the standard yarn is allowed to be taken out of the standard yarn guide path.
7. Filament winding device according to claim 6,
the nozzle is formed with a slit capable of taking out the standard yarn from the nozzle,
the standard yarn guide mechanism has a nozzle cover capable of closing and opening the slit of the nozzle.
8. Filament winding device according to claim 6 or 7,
the guide pipe has a slit formed over the entire length in the direction in which the guide pipe extends,
the standard yarn guide mechanism includes a guide cover capable of closing and opening the slit of the guide tube.
9. A filament winding device according to any one of claims 1 to 8,
the yarn feeder further includes a reference yarn buffer disposed at an upstream end of the reference yarn guide path in a reference yarn traveling direction and configured to store the reference yarn before being blown off by the nozzle.
10. A filament winding device according to any one of claims 1 to 8,
the standard yarn is wound on the surface of the bobbin,
the bobbin driving device is also provided for rotationally driving the bobbin.
11. A filament winding device according to any one of claims 1 to 10,
a guide roller for guiding the fiber bundle is provided in the fiber bundle guide path,
the standard yarn guide mechanism includes the guide pipe including a curved portion arranged along a circumferential surface of the guide roller,
the standard yarn can be taken out from a position of the guide tube facing the circumferential surface.
12. A filament winding device according to any one of claims 1 to 11,
the fiber bundle guide path is provided with:
a fixed roller whose position is fixed; and
a movable roller which is arranged on the upstream side or the downstream side of the fixed roller in the fiber bundle advancing direction and can move relative to the fixed roller,
the standard yarn guide mechanism comprises: a fixed guide pipe whose position is fixed with respect to the fixed roller; and a movable guide pipe capable of moving integrally with the movable roller,
the movable roller is movable between a normal position and a standard yarn guiding position,
at the normal position, the fiber bundle is guided,
in the reference yarn guiding position, an end portion of the movable guide tube on the fixed guide tube side in the fiber bundle advancing direction is opposed to an end portion of the fixed guide tube on the movable guide tube side in the fiber bundle advancing direction,
the movable roller is movable from the standard yarn guide position to the normal position, whereby the standard yarn can be moved from the standard yarn guide path to the fiber bundle guide path.
13. A filament winding device according to any one of claims 1 to 12,
the length of the standard yarn is equal to or greater than the length of the standard yarn guide path.
14. A yarn hanging method in a filament winding device,
the filament winding device comprises: a helical winding head for helically winding the fiber bundle around the sleeve; and a support portion that supports a bobbin around which the fiber bundle to be supplied to the helical winding head is wound,
before the fiber bundle is wound around the liner by the helical winding head, the fiber bundle is wound around a fiber bundle guide path for guiding the fiber bundle from the bobbin to the liner,
the yarn hanging method is characterized by comprising the following steps:
a standard yarn guiding step of guiding a standard yarn, which is different from the fiber bundle and is continuous with a tip end portion of the fiber bundle, to the sleeve by a standard yarn guiding mechanism having a nozzle for blowing the standard yarn by a compressed gas and a guide pipe for guiding the standard yarn blown by the nozzle;
a standard yarn moving step of taking out the standard yarn guided to the sleeve along a standard yarn guide path formed by the standard yarn guide mechanism from the nozzle and the guide pipe, and moving the standard yarn from the standard yarn guide path to the fiber bundle guide path; and
and a fiber bundle drawing step of drawing the fiber bundle to the liner by drawing the standard yarn guided to the liner.
15. The yarn hanging method in a filament winding device according to claim 14,
when the standard yarn is pulled toward the sleeve side in the fiber bundle drawing step, the standard yarn moving step is completed before the fiber bundle connected to the standard yarn is pulled on the standard yarn guide path and enters the nozzle.
16. The yarn hanging method in a filament winding device according to claim 14 or 15,
at least a part of the fiber bundle drawing step is performed in parallel with the standard yarn moving step by winding the standard yarn guided to the liner.
17. The yarn hanging method in a filament winding device according to claim 14 or 15,
the standard yarn moving step is completed before the fiber bundle drawing step is started.
CN201880051407.3A 2017-09-26 2018-08-27 Filament winding device and yarn hanging method in filament winding device Active CN111051230B (en)

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US20200231403A1 (en) 2020-07-23
US11274015B2 (en) 2022-03-15

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